Wheel-bushing.



No. 668,383 Patented Feb. I9, I901. C MILLER WHEEL BUSHING.

(Application filed May 15, 1900.)

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Wdnessas MUM mm Ilnrren States Patient Orrrcn.

CONRAD MILLER, OF LEADVILLE, COLORADO.

WHEELBUSHING.

SPECIFICATION formingpart of Letters Patent N 0. 668,383, dated February19, 1901.

Application filed May 15. 1900- berial No. 16,777. (No model.)

To all whom, it may concern.-

Be it known that I, CONRAD MILLER, a citizen of the United States,residing at Leadville, in the county of Lake and State of 0010- rado,have invented certain new and useful Improvements in Wheel-Bushings; andI do hereby declare the 'following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in wheel-hubs, and moreparticularly relates to an improved construction of bushing for thesame.

The object of the invention is to provide a bushing of the characterstated which is so constructed as to be capable of extension1ongitudinally of the wheel-hub, whereby wear upon the bushing incidentto its work upon the axle-spindlemay be easily compensated for andproper fitting of the parts in their relative positions insured at alltimes.

With this and other objects in view, which will appear as the nature ofthe im provements is better understood, the invention consistssubstantially in the novel construction, combination, and arrangement ofparts, as will be hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the appended claims.

In the drawings, Figure 1 is a longitudinal sectional view of awheel-hub provided with a bushing constructed in accordance with thepresent invention. Fig. 2 is an end elevation thereof. Fig. 3 is a frontelevation of the adjusting-nut carried by the bushing. Fig. 4 is alongitudinal sectional view of a hub provided with another form of theinvention.

Referring to the drawings, the numeral 1 designates a hub, which is ofthe ordinary construction, said hub being mounted upon the spindle 2 ofan axle 3, the latter being of the type usually employed with buggiesand similar light vehicles. Arranged within the bore of the hub 1 is alongitudinally-extending bushing 4, which bushing is driven into the hub1 in the usual manner, and said bushing is provided at its outer endwith a series of exterior screw-threads 5. An adjusting-nut 6 is mountedupon the threaded end of the bushing 2, said nut being provided with aninwardly-extending annular flange 7,

having interior screw-threads engaging with the threads of the bushing.It will be ob- Served, however, that the flange 7 is spaced a sufficientdistance from the opening 8 of the nut to accommodate the thickness ofthe bushing 4 between itself and the spindle 2, and, further, that theportion of the nut immediately surrounding said opening lies against theouter end of the bushing, and thereby protects the same from wear, thelatter being taken up by the adjusting-nut 6. It is for the purpose,however, of compensating for wear upon the bushing incident to the workof the latter upon the spindle that the nut 6 is provided, and to thisend, when said bushing has become loose upon the spindle 2, the same maybe readily tightened by unscrewing the nut 6, thereby lengthening thebushing 4, and forcing the same farther up on the spindle 2 in order toobtain a tighter fit thereon. In this movement the nut 6 always remainsin the same relation to the outer end of the hub l, and for the purposeof locking the nut 6 against displacement from the position to which thesame has been adjusted headless screws 9 are passed through said nut andinto the hub. The nut 6 is provided with diametrically opposite wings10, each of which has an opening 11 for receiving one of the screws 9,and said wings extend beyond the flange 7 and abut against the outer endof the hub, whereby the unchanged relation of the not 6 to said hubduring adjustment is effected. By reason of the wings being arrangeddiametrically opposite spaces are provided at opposite sides of the nut6, in which a wrench or other suitable tool may be applied, and saidwrench or tool may thereby be easily engaged with the wings 10 forrotating the nut 6.

It will be further observed that the nut 6 has at its outer face andencircling the opening 8 an annular rib 12, which rib, together with aflexible washer 13, such as leather, fits within a recess 1%, formed inthe inner face of a hub-attaching device 15, mounted upon the outerextremity of the spindle 2. A flexible washer 16, of leather or thelike, is also interposed between the inner end of the bushing 4 and theshoulder of the axle 3 to insure against rattling. The hub-attachingdevice 15 is of especial construction and forms the subject-matter of aseparate application for patent of even date herewith.

In Fig. 4 is shown a hub having another form of the invention, and byreferring thereto it will be seen that the essential features of theform shown in Fig. 1 are retained, the only difference being that theannular rib 12 of the nut b is dispensed with in order that thehub-attaching device may lie flush against the outer face of said nut.The hub and axle shown in Fig. 4: are of the type usually employed withheavy vehicles, such as expresswagons and the like.

The manner of adjusting the herein-described bushing will be readilyunderstood, and, as before stated, in the event of wear sufficient torequire renewed fitting of the several parts in their relation to eachother the screws 9 are removed, a wrench or other suitable tool appliedto the nut 6, and the latter u nscrewed sufficiently to permit thebushing 4 being moved upon the spindle 2 to the necessary extent forobtaining a proper fit of said bushing upon said spindle. When this hasbeen accomplished, the screws 9 are again passed through the wings 10into the hub l, and hence it is obvious that the nut G'is locked againstrotation upon the bushing and the latter held in its adjusted position.'Wear, therefore, can be constantly taken up and a proper fit insured atall times.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is

1. The combination with a hub, of a bushing arranged therein and havingone of its ends screw-threaded,an adjusting-nut mounted on said threadedend for extending the bushing longitudinally of the hub, -said nut beingprovided with. oppositely-extending wings adapted to be engaged by asuitable tool for rotating the nut, and screws passing through saidwings and engaging the hub for locking the nut in its adjustedpositions.

2. The combination with a hub, of a bushing arranged therein and havingone of its ends screw-threaded, an adj usting-nut mounted on saidthreaded end for extending the bushing longitudinally of the hub, saidnut being provided with an inwardly-extending flange encircling the endof the bushing, and also having oppositely-extending wings adapted to beengaged by a suitable tool for rotating said nut, the portion of saidnut surrounding its opening lying against the end of the bushing forprotecting the latter against wear, and means for locking the nut in itsadjusted positions.

3. The combination with a hub, of a bushing arranged therein and havingone of its ends screw-threaded,an adjustingnutmounted on said threadedend for extending the bushing longitudinally of the hub, said nut beingprovided with an inwardly-extending flange encircling the end of thebushing, and also havingoppositely-extending wings adapted to be engagedby a suitable tool for rotating said nut, the portion of said nutsurrounding its opening lying against the end of the bushing forprotecting the latter against wear, and screws passing through the wingsof said nut and engaging the hub for locking the nut in its adjustedpositions.

In testimony whereof I affix my signature in the presence of twowitnesses.

CONRAD MILLER.

Witnesses:

KNUD RASMUSSEN, JOHN LAW.

